Temporary binder



(No Model.)

W. H. CARROLL 8v P. LEMMON.

TEMPORARY BINDER.

Patented Sept. 3, 1889.

N. PETERS. Phokrlilhogmpher. wuhm mn, n. c

UNITE STATES ATENT OFFICE.

\VILLIAM II. CARROLL AND FRANK LEMMON, OF CHICAGO, ILLINOIS.

TEMPORARY BINDER.

SPECIFICATION forming part of Letters Patent No. 410,532, datedSeptember 3, 1889.

Application filed February 12, 1889.

T0 aZZ whom it may concern.-

Be it known that we, \VILLIAM II. CARROLL and FRANK LEMMON, both ofChicago, in the county of Cook and State of Illinois, have inventedcertain new and useful Improvements in Temporary linders; and we dohereby declare that the following is a full, clear, and exaetdescriptionthereof, reference being had to the accompanying drawings, and to theletters of reference marked thereon, which form a part of thisspecification.

This invention relates to improvements in that class of devices employed1'11 book-binding whereby blank leaves are inserted be tween the bindingand held rigidly in place for temporary use, and from which said leavesmay be easily withdrawn. In the devices now in use it has been customaryto employ two relatively-narrowleaves hinged or otherwise securedtogether. The moving parts of these leaves have been joined to thepasteboard or other stiff covers of the book proper by some flexiblematerialsuch as leather, paper, canvas, or various kinds of clothwhereby a flexible hinge is formed between the leaves of the binder andthe covers of the book. It has been found in practice that theseflexible hinges very soon become worn, easily tear, and that the coversof the book easily become detached entirely from the binding-leaves.

One of the objects of our invention is to provide a means for retainingor temporarily binding the blank pages or sheets of the book andproviding for their ready detachment, while at the same time to sosecurely fasten the covers of the book and the hinged leaves as toprevent any breakage at the hinged part or any detachment of said coversfrom said hinged part 011 account of wear of the hinge.

The invention also consists in the novel means employed for closing theleaves of the temporary binder, to grasp and hold the blank sheets ofpaper, and, further, in the means employed for maintaining said leavesin an open position when it is desired to remove the said pages andinsert new ones in their stead. These and other features of ourinvention will be more readily understood by the accompanyingdrawingsand the Serial No. 299,654. (No model.)

description thereof, and will be more specifically pointed out in theappended claims.

In the drawings, Figure 1 illustrates our invention as applied to abook, showing the flat side of the same. Fig. 2 illustrates the same,showing the edge of the book. Fig. 3 is an enlarged sectional view of aportion of the same, taken vertically upon the line 3 3 of Fig. 1. Fig.4 is a similar view with the blank leaves removed. the parts shown inFig. 4, with the leaves open for the insertion of blank leaves or pages.

In the drawings, A represents the covers of a book, which may bepasteboard, metal, wood, or other suitable material.

B B are the leaves of the temporary binder hinged together, as clearlyshown in Fig. 1.

B is the pivotal or hinged rod which passes through the enlarged bearingZ) of the leaves B B, which alternate, as shown, and by which suchleaves are secured together, as will be readily understood.

1) l) are springs wrapped about the rod B at one or more places in suchmanner that the ends 12 thereof, after crossing each other, as clearlyshown in Fig. 3, pass to the outside of the leaves B B, and are theresecured to said leaves. The ends of the springs have a tendency to movetoward each other, as clearly shown in Fig. l, and thus hold said leavesB B together. It will be understood, of course, that a portion of one ofthe bearings Z) is cut away at I) suiiiciently to accommodate the springI).

C C are plates or leaves pivotally secured along one of their edges tothe outward or moving edges of the leaves B B by means of the pivotalrod 0 passing through alternate bearings c c in the leaves B and C, asclearly shown in Figs. 1 and The cover A of the book is riveted at(1,01' otherwise secured to said leaves C.

D are the blank pages or sheets of paper of the book, and (I (Z are thinstrips of leather, cloth, or other cushioning material secured to theinside of the two leaves B B. Between the extreme edges or ends of oneof the leaves 3 we cut away a portion of said leaves adjacent to one ofthe spaces of said leaf; in which the bearing 1) of the opposite leaf Bwould fit a distance sufficient to leave a slot or open- Fig. 5 is aview of ing 1) between said cut-away portion of the leaf B and thebearing 1) of the other leaf B.

Secured to the leaf B opposite to the slot b, and projecting throughsaid s1ot,is a'flexible spring-detent E, having a shoulder e at a slightremove from its end. This shoulder e is adapted to engage the under side19 of the slot b when the leaves B B are open against the action of thespring b, as clearly shown in Fig. 5.

It will be noticed that the blank pages D are firmly held by the spring19' between the leaves B B, and that either of the covers A of the bookis free to be open or closed upon the hinge c. It will also be noticedthat the strips of leather or other material d, secured to the inside ofthe leaves B, are of sufficient thickness only to guard the movingportion of the hinges c of the leaves 0 C from direct contact with saidblank pages D, thus preventing any creasing or wearing of the latter.When it is desired to remove the pages D, the leaves B B are openagainst the act-ion of the spring I), as shown in Fig. 5, until theshoulder 6 of the spring-detent E engages the edge I) of the slot 12 Theleaves B B are thus held in the opened position illustrated in Fig. 5,and the said pages D may be removed and others inserted in their place.The closing of the leaves B Bis accomplished by moving the end of thespring-detent toward the pin B a distance suificient to release the partb from the shoulder e, whereupon the spring I) exerts its power andimmediately closes the leaves B B upon the pages D, as shown in Fig. 3.

The ends b of the spring I) may be inserted in holes or recesses in theleaves B B, or may be secured to said leaves upon their adjacent sides,if preferred.

The entire metal portion of our devicethat is, the leaves B B and theleaves 0 C may be incased in canvas or leather, if preferred, for thepurpose of concealing the same from view and making a neat-lookingbookbinding; but these changes are mere mechanical and well-understoodvariations, and do not alter the invention above described.

We claim as our invention 1. The temporary binder, comprising thespring-actuated clamping-leaves B B, pivotally secured to each other atone of their margins and each provided with a leaf 0, to which thecovers of the book may be secured, said leaves 0 0 being pivotallyjoined to said clamping-leaves B B, substantially as specified.

2. The combination, with the clampingleaves B B, hinged together attheir adjacent margins, and a spring adapted to compress or hold saidleaves together, of a spring-detent secured to one of said leaves,provided with a shoulder to engage a margin or part upon the other leafwhen said leaves B B are opened, and to hold the latter in the openedposition against the action of the said spring.

3. In a hinge-back for book-binders, the spring-actuated clamping-leavesB B, the cover-leaves C 0, each pivotally attached to the outer marginsof the leaves B B, the pages D, and a cushion d interposed between saidpages D and the clamping-leaves B B, substanti'ally as and for thepurpose specified.

In testimony that We claim the foregoing as our invention We aflix oursignatures in presence of two witnesses.

WILLIAM H. CARROLL. FRANK LEMMON.

Witnesses:

TAYLOR E. BROWN, GEo. W. HIGGINS, Jr.

